Do clams like flow???

Lagger

Lagger

New member
Also, do croceas like to be in the sand or on the rocks? My understanding was they like to attach to rocks, however, I had him high up on the rockwork yesterday & I woke up this morning to the clam sitting happily in the sandbed. He was getting high-intensity intermintent flow, so not sure if this caused it or not.

My first clam so any help is appreciated. Gracias! :rollface:
 
high circulation, but low flow- if that makes sense. Just make sure there are no jets of water pointed at or towarsd the clam. If you saw the amntle flapping in the breeze, it was probably too much. Corcoes usually prefer a rocky base, where they can "burrow" into their spot.
 
Yeah, makes sense. I had it placed about 5 inches away from a PH w/ a flo deflector. It' mantle was defintely getting tossed. Since it fell this morning, I have since relocated it to a spot with a little less intense flow.

It's nice I can move it around since it's byssal(sp) is attached to a cleaner clam 1/2 shell :cool:

I'm also not convinced it's doing soo hot.....I'll try to post pics have the experts chime in. Peace_
 
If its mantle is moving from the flow, its too much flow. They need to be able to spread there mantle out to catch the rays. If the flow is too high they spend too much energy fighting it and wont spread there mantle out.
 
Here are some pics of the crocea. Picked it up locally for $20 :beer: It's about 2". I'm concerned it's 'mouth' is not fully opened and therefore its stressed? Although, its mantle is extended nicely.

This is the 2nd day since I've acquired it, and have fed it some DT's last night. So what do the experts have to say? Is it not looking good, or is too early to tell? Mahalo niu loa....

'Real' color pic from above:

1633.JPG


Color thru the glass:

1637.JPG


Side shot:

1638.JPG
 
Very nice. I got my first clam(crocea) today and it looks so sweet. I've put it on top of a flat rock which is sitting on the sand and seem to like it because his mouth was open. It's not as wide spread but his mouth was about half of a quarter open.
 
that looks good to me. croceas sometimes show a very exaggerated incurrent siphon, but its not a durable indicator of health. just keep watch of the mantle. It should show you everything you need to know.

Something to consider- it is hard to tell from the pic, but it appears the clam in propped between two rocks where the shell is touching, but the byssal gland is suspended. This may cause a clam (especially a crocea) to feel "uncomfortable", and take a walk. If that gland has contact with a surface, and the clam likels the conditions, it will attach.
 
it looks good to me. the incurrent siphon may be large or small- its not a true indicator of health, just watch the mantle, it'll telkl you what you want to know.

It his hard to tell from the pic- is the byssal gland in contact with anything? or is the clam just touching the rock with its shell?
 
Clams require some water movement, just not excessive. Your Crocea will require placement in your rock work for its survival. It is called a "boring" clam for a reason as it basically molds into the rock/reef.
Squamosa and Durasa Tridacna's would do better in a deep sand bed.
 
<a href=showthread.php?s=&postid=8298462#post8298462 target=_blank>Originally posted</a> by jmaneyapanda
that looks good to me. croceas sometimes show a very exaggerated incurrent siphon, but its not a durable indicator of health. just keep watch of the mantle. It should show you everything you need to know.

Something to consider- it is hard to tell from the pic, but it appears the clam in propped between two rocks where the shell is touching, but the byssal gland is suspended. This may cause a clam (especially a crocea) to feel "uncomfortable", and take a walk. If that gland has contact with a surface, and the clam likels the conditions, it will attach.
Click to expand...

Thanks for the input. The clams byssal is actually attached to a cleaner clam 1/2 shell, so I can move it pretty much anywhere.

Although now Im concerned as I woke up again to find the clam on the sandbed. Shouldn't it feel comfortable on the rocks as its already fully attached? :confused:
 
herein lies the problem. It does think it's attached, but its really not. The byssal threads have secured to something, which the clam thinks is firm substrate. But it just a loose piece of whatever. I would recommend just putting the clam in a stable area, where you think it wont topple. If this isnt really feasible, you can try cutting the threads as far from the clam as possible, and letting it reattach.
clams can produce quite a bit of force with their water jet propulsion from their siphon. This could be moving the clam becaus it "thinks" it's attached. Rather a catch 22.
 
Dont I run the risk of killing the clam by cutting it's byssal? Also, Im worried the clam won't have room to expand if I lodge it between 2 peices of rock......hmmm......
 
byssal threads are not living tissue- its like hair, the clam wont even known their gone. Just be sure to cut AS FAR FROM THE CLAM AS POSSIBLE! Now, I should also clarify, I dont suggest wedging a clam between the rocks. You'll just want the byssal gland touching a surface so it will try to attach.
 
<a href=showthread.php?s=&postid=8312189#post8312189 target=_blank>Originally posted</a> by mushnmeesh
Were did you get such a nice clam for just $20??!??!!
Click to expand...

I go to the Wal Mart of LFS's, low everyday prices :bounce3:

I'm not very fond of online ordering, as you usually spend $20 in shipping alone and don't get to pick out your own specimen. Unless of course it's something rare or 'divers den' type, then maybe.....
 
You must log in or register to reply here.

Similar threads

H
New Crocea Clams - Some opening some not?
Replies
3
Views
676
hilde123
H
S
Clam in an unfavourable position - help moving it
Replies
19
Views
1K
Scotty333!!!
S
C
Coral placement and water flow
Replies
5
Views
536
wvned
wvned
Z
New lps frags - 1 day not doing well
Replies
16
Views
622
Reefing102
Reefing102
S
Phosphate flow out of live rock
Replies
0
Views
920
SantaMonica
S
Back
Top